« on: Jul 09, 2015, 07:19:25 PM »
Do you want more flex in the front or rear? My 85 had a 3.5 inch Pro Comp with blocks in the rear and 32x11.50 tires. I went to 33x12.50 tires with a 4.5 Superlift with rear lift springs. The front springs flexed great in both scenarios and the rear did on with blocks and OEM springs. The rear has zero travel with the 4.5 arched rear springs.
Long shackles in the front rotates your differential down and can cause both bad driveline angles and steering geometry issues. Pickups don't flex well in the rear because they don't have much weight and it sounds like you shackle angle stinks.
You could try shorter shackles in the rear to match the front height and improve the shackle angle a bit.
Logged
1989 4Runner: Dual Ultimate (Inchworm front & Marlin 4.70 rear), Marlin Twin Stick, 1200-lb clutch, 4.88 R&P, Aussie Front, Detroit rear, 30-spline Longs, Long hub gears, ARP hub and knuckle studs & 35x12.50 Cooper STT PRO tires. Marlin rear bumper & sliders. FROR front bumper. SAS with Alcan springs & Rancho 9000XL shocks. Budbuilt Bolt-on traction bar. Custom Interior Cage by Those Guys Rod and Customs.
Moab Tested & Rubicon Approved
